From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Instructions for fitting Chromidium and 5% carbon steel brake drums to two Phantom III experimental cars.
| Identifier | ExFiles\Box 92\4\ scan0309 | |
| Date | 3rd March 1937 | |
| J 306 To HPS.{Horace Percy Smith - Experimental Factory Mgr} Rm{William Robotham - Chief Engineer}/AFM.{Anthony F. Martindale}1/AP.3.3.37. PHANTOM III BRAKE DRUMS. When 33-EX. comes into the Shop to have its brakes re-lined will you please fit a set of Chromidium brake drums to it. These drums are nearly finished machined. When 37-EX. is in the Shop next will you please fit a pair of 5% carbon steel front drums to it. Rm{William Robotham - Chief Engineer}/AFM.{Anthony F. Martindale} | ||